Snowplow



Patented Jan. 15, 1924.

A UNITED. STATES OLE 0. SONJU, F TWO HA-RBORS, MINNESOTA.

SN OWPLOW.

Application led March 19, 1923. Serial No. 626,024.

To all whom t may concer/n.:

Be it known that I, OLE O. SoNJU, a citizen of the United States, residing at Two Harbors, in the county of Lake and State of Minnesota, have invented certain new and useful Improvements in- Snowplows, of which the following is a specification, reference being had therein tothe accompanying drawing.

This invention relates to snow plows and`v has particular reference to one designed to be attached to a large tractor and used 1n clearing roads of heavy snow drifts.

In many parts of the country where heavy l5 snow falls are frequent it is found that the snow will drift from one side of the road to the other, that is the snow on one side will be much deeper than on the other, making it almost impossible to do effective work with an ordinary V-type plo-w, and to design a plow which will clear a road of such heavy drifts in the most effective manner isthe principal object ofl my present invention. In plowing through heavy drifts it is also 2a found that the pow win take the line of least resistance through the snow and be pushed laterally thereby, and another object of my invention is to provide a plow with means to steer it into the drift where and when desired.

Other minor objects and advantages of theV invention will appear in the further description thereof: l

YReferring to the accompanying drawing forming part of this application, in which like reference characters indicate like parts:

Figure l is a top plan view of myimproved plow; i e

Figure 2 is a side elevation of the same; Figure 3 is a front elevation;

Figure 4 is a section on the line 4-4, Fig. 2 5 and Y Figure '5 is a rear elevation of the plow.

1 represents the land side sheet 'of the plow, the forward end of which inclines rearwardly slightly, to the lowel'most forward corner of which is attached in any desirable manner the plow share 2, and the bottom edge of the sheet 1 is bent over at right angles, having the sleigh runner 3 secured thereto in any desired manner.

To the rear of the plow share is fitted the arcuately shaped and `rearwardly inclined mould board 4, one end of which is secured by suitable angle iron to the sheet 1, and the other end is braced plate 5, which is riveted to the mould board 4, and to the lower end of which is attached the :leigh runner 6. To reinforce the lower end of the mould board I have provided therefor the grader blade 7 which forms a continuationy of the plow 'share and is `attached to the mould board in any desired manner. f

Intermediate of the sheets 1 and 5 is securely fixed, as by the brackets 8, the heavy channel 9, to which is bolted two pairs of angle clips 10, these angle clips being provided for suitable attachment of the plow to a tractor or` other power driving mechanism, in the most convenient'manner.

- In plowing a road with the plow here described, the sheet 1 will be driven into the deepest part of the snow on the road being cleared, but it is-found by experience that unless some means is provided to keep the sheet 1 headed into the drift, the vtractor will be helpless to keep the plow on its course. Therefore I have shown the forward end 11 of the sheet 1 as being hinged thereto, the upper end of said hinged connection being provided with a wormwheel 12, which meshes with the worml 13, fixed to the end of the ro-d 14, supported by the suitablev supporting brackets 15, fixed to the sheet 1. The rod 14 extends rearwardly a sufficient distance to be in convenient access of the driver of the tractor, and at the rear of the rod is provided the steering wheel 16.

Just back of the plow s hare 2, and secured to the sheet 1 and the mould board 2, I have by a suitable bracingl shown the breaker sheet 17, the same being for the purpose of breaking or loosening up the snow and directing it ofi' in the direction of the mould board, thus greatly reducing the resistance of the lsnow when the plow is being pushed therethroug f From the foregoing it is evident that -I have provided an exceedingly practical snow plow which will effectively remove heavy snow drifts and not be forced from its course by the weight of the sno-w or the de artin from the s 1 g depth thereof, and it is obvious that various modifications, within the Scope of the appended claims, may be resorted to without spirit of the invention. aving thus described my invention, what I claim and desire to secure bv Letters Patent, is:

.1. The combination with a snow plow of the character described having a mould 1 board and landside sheet, of steering means at the forward end of the landside sheet for directing the course of the plow.`

2. A snow plow comprising in combination a landside sheet, a, mould board, a breaker sheet fitted therebetween, and means for steering the forward end of the/landside sheet.

In testimony whereof I hereunto affix' my signature.

OLE O. SONJU. 

